| Business | Phone |
| Air Complanice Co 1050 William Pitt Way, Pittsburgh 15238 | (412) 826-3636 |
| Connestoga-Rovers & Assoc 103 Gamma Dr, Pittsburgh 15238 | (412) 963-7313 |
| Engineering Management Inc 1500 Ardmore Blvd, Pittsburgh 15221 | (412) 244-0917 |
| Tcm Corp 1725 Washington Rd # 304, Pittsburgh 15241 | (412) 835-8652 |
| Radian International 4955 Steubenville Pike, Pittsburgh 15205 | (412) 788-2717 |